1. Obtain identification: prepare some necessary documents, including the identification of the deceased, the death certificate, and your own identification (heir).

2. Notarization: Go to the notary office to notarize and prove that you are the legal first heir or heir of the deceased.

3. Bank card inquiry: With the notarial certificate, the identity certificate of the deceased and the death certificate issued by the public security organ, go to the bank for inquiry. The bank can check all the bank accounts of the deceased according to his ID number.

4. Check in every bank: If you don't know which bank the deceased opened an account in front, you need to check in every bank.